FRB 20210224A
A burst from FRB20201221B
- Repeater
- FRB20201221B
- Event ID
- 161739522
- Arrival, 400 MHz
- 2021-02-24 05:59:05.415 UTC
- Right ascension
- 124.107°
- Declination
- 48.735°
How the sub-bursts differ
This burst has 3 sub-bursts. These 7 measurements differ between them and are highlighted below. Everything else is the same for every sub-burst.
| Measurement | Sub-burst 1 | Sub-burst 2 | Sub-burst 3 |
|---|---|---|---|
| Arrival time, 400 MHzMJD | 59269.249368001205 | 59269.2493682245 | 59269.24936840486 |
| Arrival time, infinite frequencyMJD | 59269.24921504215 | 59269.249215265445 | 59269.24921544581 |
| Width (fitburst)s | 0.001270 | 0.016669 | 0.001629 |
| Peak frequencyMHz | 445.2 | 422.8 | 416.7 |
| Highest frequencyMHz | 498.3 | 472.9 | 451.1 |
| Spectral index | 38.51 | 20.16 | 29.43 |
| Spectral running | -180.87 | -183.55 | -364.60 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 124.107± 0.214degrees
dec- 48.735± 0.095degrees
gl- 170.60degrees
gb- 33.74degrees
Detection and dispersion
bonsai_snr- 10.1
snr_fitb- 26.5
bonsai_dm- 509.9pc cm⁻³
dm_fitb- 510.0937± 0.09598pc cm⁻³
dm_exc_ne2001- 459.1pc cm⁻³
dm_exc_ymw16- 463.9pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59269.2493682245± 2.14 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 59269.249215265445± 3.59 × 10⁻⁸MJD
Burst shape
bc_width- 0.05407s
width_fitbDiffers between sub-bursts.- 0.016669± 0.0016624s
scat_time- 0.000000s
Flux and spectrum
flux- 0.31± 0.12Jy
fluence- 3.63± 0.84Jy ms
peak_freqDiffers between sub-bursts.- 422.8MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 472.9MHz
sp_idxDiffers between sub-bursts.- 20.16± 6.40
sp_runDiffers between sub-bursts.- -183.55± 46.84
Exposure and fluence thresholds
exp_up- 51.52± 54.53hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 3.2Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 6.1Jy ms
Fit quality
chi_sq- 2184841.744
dof- 2185526
flag_frac- 0.177